72 



GUIDE TO THE FOSSIL MAMMALS A.ND BIEDS. 



Stand X. which they could rest when reaching the leaves of trees for 

 Case Y. f 00 ± ^ plaster cast of the skeleton of Megatherium, 18 feet 



long, and a slightly restored actual i skeleton of Mylodon, 

 somewhat smaller, are mounted on stands marked X, Y, in 

 the attitude which it is believed they usually assumed when 



